francis collins, sunday night at 8:00 on "q &a." >> according to an united nations, 70,000 have been killed since protests against syrian president assad. robert frod testified at a robert ford testified at a hearing. this is two hours and 15 minutes. >> this hearing will come to order. we need to review the syrian crisis. it was two years ago last week on the nightly news that we saw those protesters walking through the street, chanting, peaceful. what the world saw next without the syrian forces opened up with small arms fire on the marchers. over the ensuing weeks, that was followed by materially -- artillery barrage is and tanks and aerial apartment and finally i scud missiles into cities. we are now two years into that syria and uprising. for two leady years, u.s. policy has been a drift. the obama administration saw assad as a reformer in the works. then it bet on moscow to play a constructive role. this is the assad who is bombing villages in syria. this is the assad who is ordering teenagers tortured. frankly, he is engaged in murdering his populist. the ancient city is now i